Automatic gas-regulator



No. 753,110. PATENTED FEB. 23, 1904. F. W. PRIESTLEY, J. KEPHART & F. M.MERCHANT. AUTOMATIC GAS REGULATOR.

' APPLICATION FILED MAY 18. 1903.

N0 MODEL.

TNE norms PETERS w. Pumoumau wlSHINGTOfi. a. c.

2 U ITED STATES Patented February 23, 1904.

PATENT OFFICE.

FRANK W. PRIESTLEY, JAMES KEPHABT, AND FRANK M. MERCHANT, OF WEBSTERCITY, IOWA, ASSIGrNORS TO THE IOWA GAS PLANT COMPANY OF WEBSTER CITY,IOWA;

AUTOMATIC GAS-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 753,110, dated.February 23, 1904.

- Application filed May 18, 1903. Serial No. 157,745. (No model.)

To all whom, it may concern:

Beit known that we, FRANK WV. Pnrnsrnnr, JAMns KEPHART, and FRANK M.MERCHANT,

citizens of the United States, residing at VVeb-- ster City, in thecounty of Hamilton and State nating power; but to admit air at thebottomof the mixing-cylinder through the same pipe that supplies gas to such acylinder is objectionable in View of the fact that the gas beingheaviest in the bottom of the cylinder, where the gas is introduced,there is resistance to the introduction and mixing of air with the gasand to the raising of a float in the cylinder for operating an air-inletvalve promptly. To overcome such difliculty and delay in effecting thequick action of automatic mechanism for operating an air-inlet wheneverthe gas is too heavy and rich, we feed gas and air into the top of themixingcylinder to maintain'the desired uniform quality and discharge itfrom the bottom of the cylinder.

Our invention consists in the construction,

arrangement, and combination of operative elements with amixing-chamber, as hereinafter set forth, pointed out in our claims, andillustrated in the accompanying drawing, in which the difierent partsare distinguished by numerals. V

The numeral designates an air tight mixing chamber, preferablycylindrical in form. It has screw-threaded apertures at the center ofits top and bottom, in which'are fitted short tubes 13 and 14.

Aminor mixing-chamber 15 has a branch 16,

adapting it to be connected with a carbureter, has a valve-chamber 1'?connected with its bottom by means of a short pipe-section 18, and anextension at the bottom of the valve-chamber to be connected with asource of supply of air under pressure for conveying air from the saidsource of supply into the. valve-chamber whenever the gas in the chamber10 is dense enough to lift the float.

An elongated chamber for inclosing a lever and conveying gas from theminor mixingchamber 15 into the main mixing chamber 10 is composed of aT 19, fixed to the top of the chamber 15 and a second T 20, fixed to thetube 13 at the top of the main chamber 10, and tubes 21 and 22, asshown, or in any suitable way. A plug 23 closes one end of the elongatedchamber and a cap 2d the other end.

- A lever 25 is fulcrumed in the elongated chamber, and an air-tightfloat 26 in the chamber 10 is suspended from the short arm of the lever.On the end of the long arm of the lever is an adjustable weight 27 forcounterbalancing the float suspended from the short arm by means of alink 28, and a valve 29, fitted to-the valve-seat 30 in the chamber 17,has a stem 31 connected with the long arm of the lever.

Under the removable head 32 of the chamber 10 is a ring33, thathasinward and downwardly inclining projections 3e, to which is fixed acone-shaped deflector 35, that directs gas into the annular spacebetween the float 26 and the wall of the chamber 10 and into the bottomof said chamber, from whence it is conveyed through a pipe 36 to bedistributed to burners.

In the practical operation of our invention the suspended and balancedfloat will be very sensitive to any change in the quality of gas thatsurrounds it, and the instant too much gasolene-vapor is manifest in thegas the density thereof will lift the float, and by means of theweighted lever the valve in the valvechamber will be automaticallyopened to admit air to pass up from a source of supply under pressureinto the minor mixing-chamber and from thence into the, main chamber, as

tains, and what we claim as new, and desire to secure by Letters Patent,is

1. In agas-regulator, a main mixing-chamber, a removable head, a ringfixed under the head and a cone-shaped deflector connected with the ringand an air-tight float suspended under the head, atube fixed in the topand center of the head and an elongated chamber extended horizontallyfrom the top of said tube, a lever fulcrumed in said elongated chamberand its short arm connected with said float, and an adjustable weight onthe end of its long arm for operating a valve, arranged and com? binedto operate in the manner set forth for the purposes stated.

2. In a gas-regulator, amain mixing-chamber, a removable head, a ringfixed under the head and a cone-shaped deflector connected with the ringand an air-tight float suspended under the head, an elongated chamberextended horizontally from the-center of the head, a lever fulcrumed insaid elongated chamber and its short arm connected with said float,- anadjustable weight on the end of its long arm for operating a valve, aminor mixingchamber connected with the said elongated chamber andadapted to be connected with a carburetor, a valve-chamber at the bottomof said minor mixing-chamber, a valve fitted to a valve-seat in saidvalve-chamber and a valvestem fixed to the valve and connected with thelong arm of the lever, arranged and combined to operate in the mannerset forth for the purposes stated.

3. In a gas-regulator, a main mixing-chamber, a removable head, a ringfixed under the head and a cone-shaped deflector connected with the ringand an air-tight float suspended under the head, an elongated chamberextended horizontally from the center of the head, a lever fulcrumed insaid elongated chamber and its short arm connected with said float, anadjustable weight on the end of its long arm for operating a valve, aminor mixingchamber connected with the said elongated chamber andadapted to be connected with a carbureter, a valve-chamber at the bottomof said minor mixing-chamber, .a valve fitted to a valve-seat in saidvalve-chamber and a valvestem fixed to the valve and connected with thelong arm of the lever and a discharge-pipe at the bottom-of the mainmixing-chamber, arranged and combined to operate in the manner set forthfor the purposes stated.

FRANK W. PRIESTLEY. JAMES KEPHART. FRANK M. MERCHANT.

Witnesses:

JAMES R. WHITE, J OSEPH R. STERLING.

